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Magnetic field measurements and their uncertainties: the FORS1 legacy
S. Bagnulo, J. D. Landstreet, L. Fossati +1
During the last decade, the FORS1 instrument of the ESO VLT has been extensively used to study stellar magnetism. A number of interesting discoveries of magnetic fields in several…
A photometric study of chemically peculiar stars with the STEREO satellites. I. Magnetic chemically peculiar stars
K. T. Wraight, L. Fossati, M. Netopil +5
About 10% of upper main sequence stars are characterised by the presence of chemical peculiarities, often found together with a structured magnetic field. The atmospheres of most o…
New SPB stars in the field of the young open cluster NGC 2244 discovered by the MOST photometric satellite
D. Gruber, H. Saio, R. Kuschnig +9
During two weeks of nearly continuous optical photometry of the young open cluster NGC 2244 obtained by the MOST satellite, we discovered two new SPB stars, GSC 00154-00785 and GSC…
Magnetic Field and Atmospheric Chemical Abundances of the Magnetic Ap Star HD 318107
J. D. Bailey, J. D. Landstreet, S. Bagnulo +5
New spectra have been obtained with the ESPaDOnS spectropolarimeter supplemented with unpolarised spectra from the ESO UVES, UVES-FLAMES, and HARPS spectrographs of the very peculi…
Distance Scale Zero-Points from Galactic RR Lyrae Star Parallaxes
G. Fritz Benedict, Barbara E. McArthur, Michael W. Feast +15
We present new absolute trigonometric parallaxes and proper motions for seven Pop II variable stars: five RR Lyr variables; RZ Cep, XZ Cyg, SU Dra, RR Lyr, UV Oct; and two type 2 C…
Stellar magnetism through the polarized eyes of the FORS1 instrument
S. Bagnulo, J. D. Landstreet, L. Fossati +1
During the last decade, the FORS1 instrument of the ESO Very Large Telescope has been used to obtain low resolution circular polarized spectra for about 500 stars, with the aim of…